KR20120089262A - Refrigerated showcase - Google Patents

Abstract

Provides a refrigerated showcase that can facilitate maintenance work of the cooling mechanism installed in the machine room.
The machine room 13 which is provided with the cooling mechanism 80 which circulates and supplies a refrigerant | coolant to a cooler in the side of the heat insulation box 16 which comprises the storage chamber 12 and is equipped with the cooler which cools the said storage chamber 12. This structure is comprised and the front side of the storage chamber 12 and the machine room 13 is covered with the single front glass 14. The side of the machine chamber 13 is formed of a detachable second side panel so that the machine chamber 13 opens laterally in a state where the second side panel is removed, and the cooling mechanism 80 is opened from the machine chamber 13. The unit base 38 can be taken out from the machine room 13 through the side opening of the machine room 13 which opens by removing the 2nd side panel mounted on the extractable unit base 38. As shown in FIG.

Description

Refrigerated Showcase {REFRIGERATED SHOWCASE}

This invention relates to the cold storage showcase provided with the machine room in the side part of the heat insulation box which comprises a storage chamber.

As a refrigerated showcase for refrigeration of foods and beverages, there is a material case for refrigeration while displaying fresh foods such as sushi ingredients installed at a counter such as a sushi restaurant. See Patent Document 1). In general refrigerated showcases, a storage compartment for refrigerating and storing items such as fresh foods is provided in an insulation box, and a cooling mechanism such as a compressor or a condenser is installed in a machine room provided adjacent to the side of the insulation box. It is configured to cool the inside of the storage chamber by circulating and supplying the refrigerant from the cooling mechanism to the cooler installed in the cooling apparatus. Moreover, the front side of the said storage chamber is comprised by the transparent front glass so that the goods stored in the inside can be confirmed from the front side. In this case, the front glass is configured to cover from the storage chamber to the machine chamber, and the joints of the storage chamber and the machine chamber are removed to prevent dust from adhering to the joint portion to facilitate cleaning.

Japanese Patent Laid-Open No. 2005-233471

By the way, in the above-mentioned refrigeration showcase, most of the defects, such as structural failure, occur in the cooling mechanism accommodated in the machine room. When a defect occurs in the machine room, work is performed by removing the panel member constituting the machine room and opening the machine room. As described above, since the front side of the machine room is covered by the front glass, workability inside the machine room becomes difficult only by removing the panel member and only opening the machine room to one side. That is, in maintenance work, it is necessary to remove the front glass which becomes a obstacle of work beforehand. However, since the front glass is a large member which covers the front of the storage compartment and the machine room integrally, its weight also increases, so that the detachable work of the front glass has to be carried out by a plurality of workers, thus increasing the cost of maintenance work. It was supposed to be. In addition, since the front glass needs to be attached and detached each time in the maintenance work of the cooling mechanism, etc., the work time becomes long and it also leads to the fall of work efficiency.

Accordingly, the present invention has been proposed in order to solve these problems in view of the above problems inherent in the prior art, and an object thereof is to provide a refrigerated showcase which is easy to maintain and maintain a cooling mechanism installed in a machine room. .

In order to overcome the above problems and achieve the desired purpose, the refrigerating showcase according to the present invention circulates a refrigerant to the cooler on the side of the heat insulation box having a cooler constituting a storage compartment and cooling the storage compartment. In the refrigerated showcase configured to cover the front side of the storage chamber and the machine room by a single front glass, the machine room is provided with a cooling mechanism for supplying,

The side surface of the machine room is constituted by a detachable side panel so that the machine room opens laterally in a state where the side panel is removed, and the cooling mechanism is placed on a unit base that can be pulled out of the machine room, and the side panel is removed. It is a summary that a unit base can be taken out from a machine room through the side opening part of the machine room opened by taking out.

Moreover, in order to overcome the said subject and achieve the desired objective, the refrigeration showcase which concerns on another invention of this application comprises a refrigerant | coolant to the said cooler in the side part of the heat insulation box provided with the cooler which comprises a storage chamber and cools the said storage chamber. In the cold storage showcase is configured to cover the front side of the storage compartment and the machine room is provided with a cooling mechanism for circulating supply of

The rear surface of the machine room is constituted by a detachable rear cover, and the machine room is opened rearward in a state where the rear cover is removed.

The cooling mechanism is placed on the unit base which can be pulled out from the machine room, and the unit base can be taken out from the machine room through the rear opening of the machine room opened by removing the rear cover.

Moreover, it is set as the summary that it fixed so that both members may be fixed with a screw, between the side panel which comprises the side surface of the said machine room, and the unit base, and the fixing plate provided so that it may be installed continuously to the bottom plate which comprises the bottom surface of the machine room.

According to the refrigerating showcase according to the present invention, it is possible to work in a state where the cooling mechanism accommodated in the machine room is drawn out of the machine room, thereby improving work efficiency and reducing costs.

1 is a perspective view showing the refrigerating showcase according to the first embodiment as seen from the front side, showing a state where the second side panel constituting the machine room is removed.
Fig. 2 is a schematic perspective view showing a partially disassembled refrigerated showcase according to the first embodiment.
Fig. 3 is a cross-sectional view showing the refrigerated showcase according to the first embodiment as seen from the back side of a place corresponding to the storage compartment and the machine compartment.
4 is a schematic perspective view showing an enlarged machine room side of a refrigerating showcase according to Example 1, with the second side panel, the top cover, and the louver removed.
Fig. 5 is a schematic diagram showing an enlarged inside of the machine room side of the refrigerating showcase according to the first embodiment.
6 is a perspective view showing a unit base provided with a cooling mechanism according to the first embodiment.
Fig. 7 is a schematic perspective view showing a state in which the unit base is drawn out from the state shown in Fig. 4.
Fig. 8 is a side view showing the refrigerated showcase of the first embodiment terminated in a machine room.
9 is a cross-sectional view showing an enlarged view of all and the rear of the machine room.
10 is a schematic diagram showing a coupling structure of a side frame and a unit base according to the first embodiment.
Fig. 11 is a schematic diagram showing a coupling structure of the second upper frame and the top cover according to the first embodiment.
12 is a sectional view showing a bonding structure of the second side panel according to the first embodiment.
Fig. 13 is a schematic view showing a fixed state of a power cord according to Embodiment 1, (a) is a schematic perspective view of the refrigerating showcase seen from the rear side, and (b) is a cross-sectional plan view at a fixed position of the power cord. All.
Fig. 14 is a schematic diagram showing a bushing configuration of a power cord according to a conventional configuration, wherein (a) is a perspective view showing a power cord, and (b) is a schematic diagram showing a fixing structure of a bushing of a conventional configuration.
Fig. 15 is a schematic perspective view showing a partially disassembled refrigerated showcase according to the second embodiment.
Fig. 16 is a schematic diagram showing an enlarged inside of the machine room side of the refrigerating showcase according to the second embodiment.
Fig. 17 is a perspective view showing a unit base provided with a cooling mechanism according to the second embodiment.

Next, a refrigeration showcase according to the present invention will be described below with reference to the accompanying drawings by referring to a preferred embodiment. In the description herein, the terms "before and after" and "left and right" shall refer to the refrigerated showcase as seen from the front side.

≪ Example 1 >

As shown in FIG. 1 or FIG. 2, in the refrigerating showcase 10 of the first embodiment, the storage compartment 12 in which the article is refrigerated is composed of a heat insulating box 16, and the compressor 81 or the condenser ( 82) and the machine room 13 in which the component devices of the cooling mechanism 80, such as the fan motor 83, are accommodated, is arranged on one side of the heat insulating box 16 (in Example 1, the heat insulating box 16). It is a structure comprised so that neighboring the left side part). In addition, the front glass 14 of the refrigerating showcase 10 is formed to have a size extending over approximately the entire length in the left and right width directions of the refrigerating showcase 10, the entire of the storage chamber 12 and the machine room 13 It is comprised so that a front part and an upper part may consist of one piece of front glass 14. As shown in FIG. In the front glass 14, a portion corresponding to the machine room 13 is subjected to processing such that the inside of the machine room 13 cannot be seen from the front side by printing or the like.

As shown in FIG. 2 or FIG. 3, the heat insulating box 16 includes a bottom heat insulating wall 17 constituting a bottom of the storage chamber 12 and one of the bottom heat insulating walls 17. The side heat insulation wall 18 provided in the edge part (the right end part used as the outer surface side of the refrigeration showcase 10) which forms the side surface of the storage chamber 12, and the other end (machine room (machine room ( 13) the heat insulation partition wall 19 which is provided in the left end part which becomes a side, and forms the side surface of the storage chamber 12, and is installed in the upper end rear part of the said side heat insulation wall 18 and the heat insulation partition wall 19, It is formed in a box shape by the upper insulating wall 20 forming the side of the (12). Here, the heat insulation box 16 is comprised so that the upper heat insulation wall 20 may open to front and back and upward by oriented to the upper end part of the said side heat insulation wall 18 and the heat insulation partition wall 19, It is comprised so that the front and upper opening of the heat insulation box 16 may be blocked by the front glass 14 so that the inside of the storage chamber 12 can be seen. Moreover, the rear opening of the said heat insulation box 16 functions as the goods entrance 22 which allows the goods to be taken in and out of the storage chamber 12, and the left and right slide-type slide doors provided in the goods entrance 22 It is configured so that opening and closing is possible by not shown). A cooler (not shown) in which the coolant is circulated and supplied from the cooling mechanism 80 is provided inside the storage chamber 12, and is supplied by the coolant circulated to the cooler from the cooling mechanism 80. The storage chamber 12 is cooled.

In the heat insulation box 16, as shown in Fig. 3, the bottom heat insulation wall 17 is a bottom plate member which is opened in the upper and left and right sides and whose cross section is integrally formed by resin in a substantially C-shape ( The bottom panel 28 serving as the bottom of the storage chamber 12 is attached to the upper opening end of the chamber 25, and the heat insulating material is filled and foamed between the bottom plate member 25 and the bottom panel 28. To form a heat insulating wall. In addition, a lower end portion of the side insulation wall 18 and the insulation partition wall 19 is connected to the bottom insulation wall 17, and a foam material filled between the bottom plate member 25 and the bottom panel 28 is formed. And the bottom heat insulating wall is injected between the inner plate forming the inner surface of the storage compartment 12 and the outer plate forming the outer surface of the heat insulating box 16 in the side heat insulating wall 18 and the heat insulating partition wall 19. (17) and the side heat insulation wall 18 and the heat insulation partition wall 19 are configured to fill and foam the foam material at one time. In addition, the upper part rear part of the said side heat insulation wall 18 and the heat insulation partition wall 19 has the 1st upper frame 31 in which the recessed parts 31a and 31a which open upward over the full length of the longitudinal direction are screwed. The heat insulating material 34 is attached to the recesses 31a and 31a of the first upper frame 31 to form the upper heat insulating wall 20.

The upper surface side of the upper heat insulating wall 20 (first upper frame 31) is covered with a top cover 32 extending over approximately the entire width of the refrigerating showcase 10 in the left and right width directions, and the side heat insulating wall. The outer surface side of 18 is covered by the decorative first side panel 33. The first side panel 33 has a second coupling part 33a provided at an upper end of the first side panel 33 at a first coupling part 3lb provided at a right end of the first upper frame 31. The lower end is screwed to the side heat insulation wall 18 in a state that is detachably coupled). Here, the top cover 32 has a right end portion sandwiched between an outer circumferential flange portion 33b formed on an outer circumferential edge portion of the first side panel 33 and the first upper frame 31, and a second portion described later. The left end part is sandwiched and fixed between the outer peripheral flange 67 of the side panel 65 and the second upper frame 51.

As shown in FIG. 2, FIG. 4, FIG. 5, and FIG. 7, the said bottom plate member 25 which forms the said bottom part heat insulation wall 17 is laterally than the said heat insulation partition wall 19 (machine room 13). Side) so as to constitute the bottom surface of the machine room 13 with the bottom plate member 25. That is, the bottom plate member 25 constitutes the bottom face of the entire refrigerated showcase 10, and integrally constitutes the bottom face of the storage compartment 12 and the machine compartment 13. In addition, in the upper end of the front part 26 in contact with the front side of the refrigerated showcase 10 in the bottom plate member 25, the engaging groove 26a engaging with the lower end of the front glass 14 is entirely in the longitudinal direction. The upper heat insulating wall 20 (first upper frame 31) and the top cover 32 are formed integrally over the length and in the state in which the lower end of the front glass 14 is coupled to the coupling groove 26a. The front glass 14 is fixed by sandwiching the upper end of the front glass 14 between the. In addition, the right end of the front glass 14 is covered by the outer circumferential flange portion 33b of the first side panel 33.

A lower slide rail for slidably supporting the lower part of the slide door is integrally formed along the longitudinal direction at the upper end of the rear part 27 in contact with the rear surface of the refrigerated showcase 10 in the bottom plate member 25. Further, at the rear end of the upper insulating wall 20 (first upper frame 31), an upper slide rail is formed along the longitudinal direction to support the upper part of the slide door so as to be slidable. The article entrance 22 is opened and closed by sliding the slide door accordingly. Further, the lower slide rail is formed only at a position corresponding to the storage compartment 12 (that is, between the side insulation wall 18 and the insulation partition wall 19) in the rear portion 27 of the bottom plate member 25. The lower slide rail is not formed at the position corresponding to the machine room 13 in the bottom plate member 25.

As shown in FIGS. 3 to 5 and 7 to 9, the machine room 13 includes the bottom plate member 25 serving as a base of the refrigerated showcase 10 and a side wall as a structural member. The frame | skeleton is formed from the side frame 53 which comprises, the said heat insulation partition wall 19, and the 2nd upper frame 51 which comprises a ceiling wall. The second side panel 65, the exterior panel 57, and the louver 61 with respect to the heat insulation partition wall 19, the bottom plate member 25, the side frame 53, and the second upper frame 51. The top cover 32 and the front glass 14 are assembled to form the machine room 13, and the machine room 13 is moved to the side by removing the second side panel 65 (in the first embodiment) And to maintain the cooling mechanism 80 by the opening of the method.

As shown in FIG. 5, FIG. 8, and FIG. 9, the bottom plate member 25 is provided with a reinforcement plate 35 at a portion constituting the bottom surface of the machine room 13, and the bottom plate member 25 is provided. The bottom of the machine room 13 is reinforced, and the unit base 38 provided with the cooling mechanism 80 on the reinforcement plate 35 is provided in a state in which the machine room 13 can be pulled out. The reinforcement plate 35 is provided with reinforcement wall portions 35b, 35c, and 35d extending upward from front and rear and right ends of the bottom plate 35a covering the entire bottom face of the machine room 13, and each reinforcement wall portion 35b, 35c, and 35d are fixed to the front part 26, the back part 27, and the heat insulation partition wall 19 of the bottom plate member 25 with screws or rivets, respectively. In the reinforcing plate 35, the reinforcing wall portion 35b, a rail portion 36 is formed as a guide means for guiding the unit base 38 to be pulled out. The rail portion 36 includes a first piece 36a extending substantially horizontally into the machine room 13 and a second piece 36b extending downward from a protruding end of the first piece 36a. The front wall 39 of the unit base 38 is inserted between the second piece 36b of the rail portion 36 and the reinforcing wall portion 35b of the reinforcing plate 35, so that the unit base 38 ) Is guided left and right.

The unit base 38 is formed in the shape of a box opening upward as shown in Figs. 6, 8, and 9 to cool the compressor 81, the condenser 82, the fan motor 83, and the like. A fixing piece for fixing the mechanism 80 is formed at an appropriate position. Here, the front wall 39 of the unit base 38 inserted into the rail portion 36 of the reinforcing plate 35 extends above the left and right side walls 41 of the unit base 38. It is formed, and the side wall 41 of the said unit base 38 can insert the front wall 39 from the side, without interfering with the rail part 36. In the unit base 38, the side wall 41 on the side of the second side panel 65 (the side wall 41 on the left side in the first embodiment) forms the side frame forming a skeletal structure of the machine room 13. A second coupling portion is detachably coupled to the first coupling portion (described later) formed in the 53, and the side frame 53 is attached to the unit base 38 by coupling the first coupling portion and the second coupling portion. To be positioned relative to the In the first embodiment, the through hole 41a is formed in the left wall of the unit base 38 as the second engaging portion.

In addition, the rear wall 40 of the unit base 38 is provided with a protruding piece 40a extending outwardly (backward) at the upper end portion. Here, in the unit base 38, the dimension from the front wall 39 to the protruding end of the protruding piece 40a is set to substantially coincide with the width dimension before and after the machine room 13, and the unit base In the state where the front wall 39 of 38 is inserted into the rail portion 36, the protruding end of the protruding piece 40a is placed on the inner surface side of the rear surface 27 of the bottom plate member 25. In front of the unit base 38, withdrawal or receipt of the unit base 38 relative to the machine room 13, the front portion 26 and the rear portion 27 of the bottom plate member 25 guides the unit base 38. Function as. The rear wall 40 of the unit base 38 is provided with protrusions 40b and 40b which protrude convexly to the rear at positions spaced apart in the left and right directions, and the protrusions 40b and 40b of the unit base 38 are formed. In the state where the screw hole 40c is formed in the projecting end surface (end surface), and the unit base 38 is accommodated in the machine room 13, the screw hole 40c of the said protrusion part 40b, 40b is the said bottom plate member ( The unit base 38 is aligned with the through holes 27b and 27b formed in the rear part 27 of the back side 25 and screwed into the corresponding screw holes 40c into the corresponding screw holes 40c. Is fixed at a predetermined position in the machine room 13.

2 and 6, the refrigerant pipe circulating the refrigerant from the cooler to the compressor 81 is formed in a curved serpentine shape, and the snake-like portion of the refrigerant pipe extends and deflects the machine room. The unit base 38 is allowed to withdraw from (13). 2 and 6, only the refrigerant pipes connecting the compressor 81 and the cooler are shown in the drawing. However, the coolant pipes circulating the refrigerant from the condenser 82 to the cooler are similarly formed in a snake shape and bent in the machine room. The unit base 38 can be withdrawn from 13.

6 and 13, the power cord 43 is connected to an external power source through a through hole 40d formed so as to penetrate back and forth in the left end portion of the rear wall 40 in the unit base 38. As shown in FIG. Is attached via bushing 44. In this case, the bushing 44 includes a coupling part 45 coupled to the through hole 40d, and a fall prevention part provided at a rear side of the coupling part 45 and larger in diameter than the through hole 40d. The power cord 43 provided in the bushing 44 and inserted into the through hole (not shown) extends outward from the rear end face of the fall prevention section 46.

Moreover, in the state which accommodated the said unit base 38 in the machine room 13 in the back part 27 in the said bottom plate member 25, and the candidate steel wall part 35c in the said reinforcement board 35, Cut portions 27a and 27a are formed at positions aligned with the through holes 40d back and forth and open to the left end portion, respectively. Each cut-out portion 27a of the reinforcing plate 35 and the unit base 38 is formed in a shape that matches the fall prevention portion 46 of the bushing 44, and the unit base 38 Bushings 44 are coupled to each cutout portion 27a in the state where the chamber base 13 is stored in the machine room 13 and the unit base 38 is withdrawn from the machine room 13. The fall prevention part 46 of this invention is made to come out from the side opening of each cut part 27a. In addition, in the state where the fall prevention portion 46 is coupled to each of the cut portions 27a, the rear end surface of the fall prevention portion 46 is located on the same surface as the rear surface portion 27 of the bottom plate member 25 or is missing. The rear end surface of the prevention part 46 is comprised so that it may protrude slightly back rather than the back part 27 of the bottom plate member 25. As shown in FIG. And the outer peripheral flange part 67 located in the lower rear end of the 2nd side panel 65 which comprises the side surface of the said machine room 13 contacts the rear end surface of the fall prevention part 46, and the said unit base 38 The bushing 44 is fixed by sandwiching the fall prevention portion 46 between the rear wall 40 and the outer circumferential flange portion 67 of.

As shown in Figs. 2, 3 and 12, the side frame 53 constituting the side frame of the machine room 13 and the second upper frame 51 constituting the upper frame of the machine room 13 are the side frames. In the state where the lower end of the second end frame 51 (the lower end of the left end in the first embodiment) is opposed to the upper end of the 53, both frames are screwed and the frame unit 50 can be integrally handled. It consists. Reinforcing ribs are appropriately formed in each of the side frame 53 and the second upper frame 51 so as to secure rigidity as a skeletal structural member of the machine room 13. . An exterior panel 57 constituting the rear surface of the machine room 13 is attached to the rear end of the second upper frame 51, and the refrigeration showcase 10 is operated on the lower surface side of the second upper frame 51. A control box 59 is provided to control the control. In addition, a power switch 58 is attached to the exterior panel 57 so as to be exposed to the rear side of the refrigerated showcase 10.

Moreover, it is comprised by the outer peripheral flange part 67 located in the back side 27 of the bottom plate member 25, the exterior panel 57, the heat insulation partition wall 19, and the 2nd side panel 65. As shown in FIG. The louver 61 in which a plurality of slits 61a penetrating in the front-rear direction are attached to the rear opening of the machine room 13 to be attached and detached. The louver 61 inserts an upper end portion into the rear side of the exterior panel 57 and has a lower coupling portion 6lb installed at the lower end portion of the louver 61 at the rear wall 40 of the bottom plate member 25. It is attached in the state which closes the rear opening part of the said machine room 13 by attaching detachably to the upper end of. The louver 61 of the condenser 82 is detachably provided with a filter 62 that covers the entire surface of the condenser 82 in contact with the louver 61 side in a removable manner. ), The filter 62 is detachable from the rear opening of the machine room 13.

The side frame 53 is provided with an extension piece 55 extending downward from the lower left end of the main body part 54 in the side frame 53. The extension piece 55 includes the unit. A coupling pole 55a is formed as a first coupling portion that detachably couples to a second coupling portion formed on the base 38. And the said side part by engaging the said 1st engagement part and the 2nd engagement part in the state which extended the extension piece 55 of the said side frame 53 to the outer surface side of the side wall 41 in the said unit base 38. The frame 53 (frame unit 50) is to be positioned relative to the unit base 38. As shown in FIG. Further, when the side frame 53 (frame unit 50) is positioned relative to the unit base 38, the lower surface of the main body 54 of the side frame 53 is the side wall of the unit base 38. The unit base 38 can support a vertical load acting on the side frame 53 in contact with or near the upper end of the 41.

Moreover, the said 2nd upper part frame 51 is comprised so that a right end part may be screwed to the upper end part of the heat insulation partition wall 19 which comprises the said storage chamber 12 and the machine room 13. That is, the unit base 38 and the first coupling part of the side frame 53 and the second coupling part of the unit base 38 are coupled and the second upper frame 51 is fixed to the insulating partition wall 19. The frame unit 50 is installed between the insulating partition walls 19. At this time, the first upper frame 31 on the side of the storage chamber 12 and the second upper frame 51 of the machine room 13 are configured to be positioned in a straight line shape. And the whole of the second upper frames 31 and 51 can be integrally covered. The upper end of the front glass 14 corresponding to the machine room 13 is sandwiched between the second upper frame 51 and the top cover 32.

3, 4, 7, and 11, first hooks 31c and 51a that are elastically deformable are formed on upper surfaces of the first upper frame 31 and the second upper frame 51. In addition, on the lower surface side of the top cover 32, a second hook 32a detachable from the first hooks 31c and 51a at a position corresponding to the first hooks 31c and 51a is elastically deformable. Formed. The first hooks 31c and 51a and the second hooks 32a are engaged by contacting the bottom surface of the top cover 32 so as to cover the top surfaces of the first upper frame 31 and the second upper frame 51. The top cover 32 is positioned with respect to the first upper frame 31 and the second upper frame 51. In addition, the first hooks 31c and 51a of the first upper frame 31 and the second upper frame 51 are formed on the same straight line in the horizontal direction. In addition, a first fixing piece 52a fixed to the second upper frame 51 and an upper portion extending from the left edge of the second upper frame 51 are disposed on the upper left end of the second upper frame 51. The first coupling member 52 formed in an L shape is provided by the first coupling piece 52b, and the upper portion of the second side panel 65 is positioned and fixed through the first coupling member 52. It is. In addition, the first fixing piece 52a of the first coupling member 52 is fixed using a screw that fixes the second upper frame 51 and the side frame 53.

In the shielding plate 66 covering the side opening of the machine room 13 in the second side panel 65, a slit for discharging air received into the machine room 13 by driving the fan motor 83 ( A large number of 66a) penetrates in the left and right directions. Further, an outer circumferential flange portion 67 is formed at an outer circumferential edge portion of the shield plate 66 over its entire circumference, and the bottom plate member 25, the second upper frame 51, and the front glass 14 are formed. The side end portion is covered with the outer circumferential flange portion 67. In addition, a second coupling member 69 is detachably attached to the first coupling member 52 installed in the frame unit 50 on the inner upper portion of the shield plate 66. The second coupling member 69 is bent into the machine room 13 from the upper edge of the second fixing piece 69a fixed to the shielding plate 66 and the second fixing piece 69a, and the The 1st engagement piece 52b of the 1st engagement member 52 is comprised by the 2nd engagement piece 69b in which the engagement hole 69c which can be removed is formed. The second side is formed by inserting the first coupling piece 52b of the first coupling member 52 into the coupling hole 69c of the second coupling piece 69b of the second coupling member 69. The upper part of the panel 65 is positioned with respect to the frame unit 50, and in this state, the lower part of the second side panel 65 is screwed into the side surface of the unit base 38, so that the second side panel 65 ) Is fixed.

At this time, the extension piece 55 in the side frame 53 of the frame unit 50 includes the shielding plate 66 of the second side panel 65 and the side wall of the unit base 38. 41) is narrowly fixed. In addition, a side end portion of the top cover 32 covering the second upper frame 51 is sandwiched between the outer circumferential flange portion 67 of the second side panel 65 and the second upper frame 51. The outer circumferential flange 67 of the second side panel 65 contacts the rear end surface of the fall prevention portion 46 of the power cord 43 so that the fall prevention portion 46 of the bushing 44 is brought into contact with the unit. It is sandwiched between the rear wall 40 of the base 38. In other words, the first side panel 33 is removed from the side insulation wall 18 and the second side panel 65 is removed from the unit base 38 and the frame unit 50. The top cover 32 can be detached by disengaging the hooks 31c and 51a and the second hook 32a.

(Operation of Example 1)

Next, the operation of the refrigerated showcase 10 according to the first embodiment will be described.

In the maintenance work of the said cooling mechanism 80, etc., first, the screw which fixes the said 1st side panel 33 to the side heat insulation wall 18 of the said heat insulation box 16 is removed, and the said The first side panel 33 is detached by releasing the coupling between the first coupling part 3lb provided on the first upper frame 31 and the second coupling part 33a of the first side panel 33. Then, the screws for fixing the second side panel 65 to the unit base 38 are loosened, and the first coupling piece 52b in the first coupling member 52 provided in the frame unit 50 is removed. The second side panel 65 is removed from the coupling hole 69c of the second coupling piece 69b in the second coupling member 69 provided on the second side panel 65. As a result, most of the machine room 13 opens to the left in a state where a part of the machine room 13 is blocked by the frame unit 50 (side frame 53). At this time, the pinching of both ends of the top cover 32 is released, and the first hook 31c formed on the first upper frame 31 and the frame unit 50 (the second upper frame 51), The top cover 32 is detached by releasing the engagement between the second hook 32a formed on the top cover 32 and 51a.

Subsequently, the screw which fixes the said frame unit 50 (2nd upper frame 51) to the said thermal insulation partition wall 19 is removed, and the whole of the said frame unit 50 is the upper end of the front glass 14 By pulling out the side of the machine room 13 along the lower surface, the engaging pawl 55a of the side frame 53 is pulled out of the through-hole 41a of the unit base 38, and released, and the said frame unit 50 is disconnected. It is removed from this machine room 13. As a result, the machine room 13 is completely opened laterally. And the protrusion part 40b, 40b of the said unit base 38 through the through-hole 27b of the back part 27 of the bottom plate member 25 in the state which completely opened the side opening part of the said machine room 13. The unit base 38 is released by unscrewing the screw inserted into the screw hole 40c of the screw hole 40c, and the unit base 38 can be taken out from the side opening of the machine room 13.

Thus, in the refrigerating showcase 10 which concerns on Example 1, the machine room 13 is opened to the side by removing the 2nd side panel 65, and the said unit base 38 is drawn out to the side of the machine room 13, Maintenance work of the cooling mechanism 80 can be performed. That is, since maintenance work of the cooling mechanism 80 can be performed without removing the front glass 14, work time can be shortened and work can be carried out by one worker, thereby reducing costs. It can be realized. Moreover, since the unit base 38 in which the cooling mechanism 80 is installed can be taken out from the machine room 13, maintenance work, etc. can be performed, and workability is improved.

In addition, since the front wall 39 of the unit base 38 is inserted into the rail portion 36 of the reinforcing plate 35 provided on the bottom plate member 25 constituting the bottom surface of the machine room 13, The stability of the unit base 38 at the time of taking out or storing the unit base 38 with respect to the machine room 13 becomes high, and workability is improved. In addition, by inserting the front wall 39 of the unit base 38 into the rail portion 36, the lifting of the unit base 38 can be prevented when the unit base 38 is pulled out or stored, and the machine room can be prevented. With respect to (13), the unit base 38 can be taken out or stored smoothly. In addition, the dimension from the front wall 39 in the unit base 38 to the projecting end of the projecting piece 40a is defined by the width dimension before and after the machine room 13 (front part of the bottom plate member 25) 26 and the rear part 27 of the bottom plate member 25 so as to function as a guide means of the unit base 38. In addition, the stability of the unit base 38 at the time of withdrawal and storage can be further improved, and workability such as maintenance work can be further improved.

In addition, the rail portion 36 for guiding the unit base 38 is formed to be located in front of the machine room 13, and the protrusions 40b and 40b for screwing to the rear wall 40 of the unit base 38 are formed. ), The fixing screw of the unit base 38 is not seen from the showcase front side, and the designability of the refrigerated showcase 10 can be improved. In addition, since the bottom plate member 25 is integrally molded by resin in the shape of opening upward and sideward, the number of parts constituting the refrigerated showcase 10 can be reduced, and the number of assembly and sealing can be reduced. In addition, the manufacturing cost of the refrigerated showcase 10 can be reduced. Moreover, the bottom plate member 25 is formed in the size which integrally comprises the bottom surface of the said storage chamber 12 (insulation box body 16) and the machine room 13, and consists only of the said bottom plate member 25. Since the whole bottom face of the refrigerated showcase 10 is comprised, the weight reduction can be made large and the workability of the manufacturing operation of the refrigerated showcase 10 improves. Also, by using the bottom plate member 25 as a single resin molded part, as shown in the conventional structure in which the bottom plate member 25 is formed by assembling a plurality of panels, seams between the members appear on the outer surface of the refrigerated showcase 10. No, the designability of the refrigerated showcase 10 can be improved.

After the maintenance work for the cooling mechanism 80, etc., the refrigerated showcase 10 is restored by assembling each member in the reverse order. That is, first, the unit base 38 drawn out from the machine room 13 is accommodated in the machine room 13 along the rail part 36, and the through-hole 27b formed in the rear part 27 of the bottom plate member 25 is formed. A screw is inserted into the screw hole 40c of the corresponding protrusion 40b to fix the unit base 38 at a predetermined position in the machine room 13. Subsequently, the frame unit 50 is inserted along the lower surface of the upper end of the front glass 14 from the side opening of the machine room 13, and the coupling pole 55a formed on the side frame 53 is attached to the unit base 38. After inserting into the through hole 41a and screwing the right end of the second upper frame 51 to the upper end of the heat insulation partition wall 19, the first hook 51a of the second upper frame 51 is attached. The second hooks 32a of the top cover 32 are coupled to each other so that each of the first upper frame 31 and the second upper frame 51 is covered with the top cover 32. In addition, the first coupling part 3lb of the first upper frame 31 and the second coupling part 33a of the first side panel 33 are coupled to each other, and the first side panel 33 is connected to the thermal insulation box ( The first coupling piece 52b of the first coupling member 52 which is fixed to the side heat insulating wall 18 of the side 16 and installed on the frame unit 50 is attached to the second side panel 65. Refrigerated showcase by inserting into the engaging hole 69c of the second engaging piece 69b of the second engaging member 69 provided and screwing the second side panel 65 into the unit base 38. 10 is restored.

In this way, the frame unit 50 is assembled by assembling the side frame 53 and the second upper frame 51 constituting the skeletal structure of the machine room 13 so as to be integrally handled as the frame unit 50. Since the machine room skeleton can be disassembled and restored only by attaching or detaching the structure, it is possible to shorten the work time required for maintenance work of the cooling mechanism 80. In addition, the side frame 53 of the frame unit 50, the extension piece 55 is firmly sandwiched between the side wall 41 of the unit base 38 and the second side panel 65, Since the side frame 53 (extension piece 55) does not need to be screwed to the unit base 38 alone, the detachable workability of the frame unit 50 is improved.

On the other hand, as a bushing for fixing the power cord 43, conventionally, a fixing member 91 in which a groove 90a is formed on the outer circumferential surface of the bushing 90 as shown in Fig. 14, and the bushing 90 is fixed. A burring process for forming an annular engaging piece 92 at the inner peripheral edge of the through hole 91a formed in the through hole 91a to engage the engaging piece 92 with the groove 90a of the bushing 90. Since it is comprised, the processing cost of the fixing member 91 becomes a factor which increases. On the other hand, the bushing 44 of the first embodiment includes a coupling part 45 coupled to the through hole 40d formed in the unit base 38 and a fall prevention part 46 having a diameter larger than that of the coupling part 45. It is comprised so that the said fall prevention part 46 may be pinched and fixed between the back wall 40 of the unit base 38 and the outer flange part 67 of the 2nd side panel 65. As shown in FIG. In other words, the bushing 44 for supporting the power cord 43 can be fixed to the through hole 40d without burring, so that the cost can be reduced.

In addition, even when the power cord 43 is pulled out, the outer circumferential flange portion 67 of the second side panel 65 is brought into contact with the rear end surface of the fall prevention portion 46 in the bushing 44 so that the bushing 44 ) Can be reliably prevented from coming off, and the handleability of the power cord 43 is not reduced. In addition, in a configuration in which the engaging piece 92 of the fixing member 91 is coupled to the groove portion 90a, as in the conventional bushing 90, the bushing 90 protrudes from the fixing member 91 so that an aesthetic appearance is separated. The difficulty in connecting the added value of the product is also pointed out, but in the bushing 44 of the first embodiment, the bottom plate is engaged with the engaging portion 45 coupled to the through hole 40d of the unit base 38. The refrigeration showcase 10 is located at the same surface as the rear end face of the rear part 27 and the fall prevention part 46 of the member 25 so that the bushing 44 does not protrude rearward from the rear part 27. There is also an advantage that the designability of a) can be improved.

≪ Example 2 >

Next, the refrigerating showcase of Example 2 is demonstrated. However, since the basic configuration of the refrigerated showcase 100 according to the second embodiment is basically the same as that of the refrigerated showcase 10 described in the first embodiment, members and structures having the same functions are given the same reference numerals for detailed description. Omit.

In the refrigerating showcase 100 according to the second embodiment, as shown in FIG. 15, the rear portion 27 of the bottom plate member 25 constituting the bottom surface of the machine room 13 is separated from the side heat insulation wall 18. It is formed only between the heat insulation partition walls 19, and is comprised so that the said machine room 13 may fully open to the rear. The bottom plate member 25 is provided so that the fixing plate 102 is continuous so as to protrude upward from the side end portion on the side of the second side panel 65. That is, in the refrigerating showcase 100 according to the second embodiment, the unit base 108 provided with the cooling mechanism 80 cannot be pulled out from the side opening of the machine room 13, so that the unit base 108 is removed. It is configured to be withdrawable from the rear opening of the machine room 13. In addition, the bottom plate member 25 is formed with a coupling groove 103 opening upwardly at a rear edge portion in contact with the machine room 13 so as to extend in the horizontal direction (see FIG. 16). The lower end is detachably inserted.

In the refrigerating showcase 100 according to the second embodiment, an outer circumferential flange portion located on the back side of the bottom plate member 25, the exterior panel 57, the heat insulation partition wall 19, and the second side panel 65. The louver 61 is detachably provided in the opening part formed by each of 67 similarly to Example 1. FIG. The louver 61 according to the second embodiment is similar to the first embodiment with the lower engaging portion 6lb provided at the lower end of the louver 61 in the state where the upper end is inserted into the rear side of the exterior panel 57. It is attached to the engaging groove 103 of the bottom plate member 25 by being inserted from above. That is, in Example 2, the said exterior panel 57 and the louver 61 function as the back cover which comprises the back surface of the machine room 13, and the said louver 61 and the exterior panel 57 (frame unit 50) ), The unit base 108 can be pulled out from the machine room 13 by removing. Moreover, the filter 62 which covers the said louver 61 substantially entirely in the condenser 82 side in the said louver 61 is detachably attached, and the machine room 13 is carried out with the louver 61 removed. It is comprised so that attachment and detachment of the filter 62 from the rear opening of the may be carried out. In addition, the louver 61 and the filter 62 have cutouts 61c and 62a formed at edge portions (lower right corner portions in FIG. 15) corresponding to the power cords 43 provided in the unit base 108. The interference between the louver 61 and the filter 62 and the power cord 43 is prevented.

In addition, the fixing plate 102 is detachably coupled to the coupling pole (first coupling portion) 55a formed in the frame unit 50 (side frame 53) forming the skeletal structure of the machine room 13. The second engaging portion is formed, and the frame unit 50 (side frame 53) is positioned with respect to the bottom plate member 25 (fixed plate 102) by engaging the engaging pole 55a and the second engaging portion. It is supposed to be. Here, in the second embodiment, a through hole 102a to which the coupling pole 55a is coupled as the second coupling portion is formed in the fixing plate 102. In addition, the fixing plate 102 is provided with screw through holes 102b and 102b at positions spaced apart in the front and rear direction, and the screw through holes 102b and 102b of the fixing plate 102 in the second side panel 65. Screw through holes 65a and 65a are formed at positions aligned left and right, respectively, and the screws inserted into the screw through holes 65a and 65a of the second side panel 65 are screwed to the fixing plate 102. It is comprised so that insertion into the through-hole 102b, 102b may be possible.

Moreover, the reinforcement board 105 provided in the said machine room 13 extends upward from the front end part and left and right side end parts of the bottom plate 105a which covers substantially the whole bottom surface of the said machine room 13 as shown in FIG. And reinforcing wall portions 105b and 105c, and each of the reinforcing wall portions 105b and 105c is screwed into the front portion 26, the heat insulation partition wall 19, and the fixing plate 102 of the bottom plate member 25, respectively. Or by means of fastening means not shown in the figure such as rivets or adhesives. In FIG. 16, the left reinforcing wall portion fixed to the fixing plate 102 in the reinforcing plate 105 is omitted in the drawing. In the left reinforcing wall portion fixed to the fixing plate 102, a through hole (not shown) is formed at a position corresponding to the screw through holes 102b and 102b of the fixing plate 102. Screws inserted into the 102b and 102b are to be inserted into the machine room 13.

As shown in Fig. 16, the reinforcing plate 105 has a rail portion as a guide means for guiding the unit base 108 to be pulled out to the right reinforcing wall portion 105c fixed to the heat insulating partition wall 19 ( 106 is formed. The basic configuration of the rail portion 106 is the same as the rail portion 36 of the first embodiment, the first piece 106a extending substantially horizontally from the right reinforcing wall portion 105c into the machine room 13, and the It consists of a 2nd piece (106b) extending downward from the protruding end of the 1st piece (106a), and consists of the unit base (108) between the 2nd piece (106b) of the said rail part (106) and the right reinforcing wall part (105c). The right side wall 110 of) is inserted to guide the unit base 108 back and forth.

The unit base 108 accommodated in the said machine room 13 is formed in the box shape which opens upward similarly to Example 1. As shown in FIG. In the state where the unit base 108 is accommodated in the machine room 13, the left side wall 109 facing the fixing plate 102 is aligned left and right with the screw through holes 102b and 102b of the fixing plate 102. The screw holes 109a and 109a are formed so that they are respectively (refer FIG. 17). That is, with the fixing plate 102 interposed between the second side panel 65 and the unit base 108 (left side wall 109), the screw through hole 65a of the second side panel 65 is provided. And the screw inserted into the screw through holes 102b and 102b of the fixing plate 102 into the corresponding screw holes 109a and 109a of the unit base 108 (the left side wall 109). The base 108 is fixed at a predetermined position in the machine room 13 and the second side panel 65 is fixed. In addition, the right side wall 110 of the unit base 108 inserted into the rail portion 106 of the reinforcing plate 105 is above the front wall 111 and the rear wall 112 of the unit base 108. And the front wall 111 and the rear wall 112 of the unit base 108 can insert the right side wall 110 from the rear side without interfering with the rail portion 106.

Here, the dimension from the right side wall 110 to the left side wall 109 in the unit base 108 is the width dimension of the left and right sides of the machine room 13 (from the heat insulation partition wall 19 to the fixing plate 102). Specifically, the distance of the reinforcing plate 105 is set to substantially match the distance from the right reinforcing wall portion 105c to the left reinforcing wall portion. In other words, the heat insulation partition wall 19 and the fixing plate 102 function as guide means of the unit base 108 to increase the stability of the unit base 108 with respect to the machine room 13 when it is taken out and stored.

[Operation of Example 2]

Next, the operation of the refrigerated showcase 100 according to the second embodiment will be described.

In the maintenance work of the cooling mechanism 80, the louver 61 is lifted upward and the lower coupling portion 6lb and the coupling groove 103 of the bottom plate member 25 are coupled. The first side panel 33 and the second side panel 65 are removed in the same manner as in the first embodiment in the state where the louver 61 and the filter 62 are removed by releasing. As a result, most of the machine room 13 opens to the left and rear in a state where part of the machine room 13 is blocked by the frame unit 50 (side frame 53 and the exterior panel 57). In addition, by removing the top cover 32 and the frame unit 50, the machine room 13 is completely opened to the rear.

Since the unit base 108 is integrally fixed through a screw that fixes the second side panel 65 to the fixing plate 102, the unit base 108 is removed by removing the second side panel 65. The base 108 is released. As described above, in the refrigerating showcase 100 according to the second embodiment, the machine room 13 is opened rearward by removing the second side panel 65 and the frame unit 50 (exterior panel 57), and the unit The fixing of the base 108 is released, and the unit base 108 can be taken out to the rear of the machine room 13 to perform maintenance work of the cooling mechanism 80 and the like. That is, since maintenance work of the cooling mechanism 80 can be performed without removing the front glass 14, work time can be shortened and work by one worker can be performed. Savings can be realized. Moreover, since the unit base 108 in which the cooling mechanism 80 is installed can be taken out from the machine room 13, maintenance work, etc. can be performed, and workability is improved.

Moreover, since the right side wall 110 of the said unit base 108 is inserted in the rail part 106 of the reinforcement board 105 provided in the bottom plate member 25 which comprises the bottom face of the said machine room 13, it is implemented. As in Example 1, stability can be improved when the unit base 108 is taken out or stored. In addition, the fixing screw of the unit base 108 is not seen from the front of the showcase front side by fixing the unit base 108 by using the screw that fixes the second side panel 65, so that the designability of the refrigerated showcase 100 can be avoided. You can also increase it. In addition, since the unit base 108 can be fixed at the same time only by screwing the second side panel 65, and the unit base 108 is also released by removing the second side panel 65, The workability of assembling and disassembling the refrigerated showcase 100 in maintenance and the like is greatly improved.

<Change example>

This application is not limited to the structure of the above-mentioned embodiment, A structure other than that can be employ | adopted suitably.

1. In the first and second embodiments, the side frame and the upper frame forming the skeleton of the machine room are unitized so that they can be handled integrally, but the side frame and the upper frame can be handled alone as independent members. You may also do it.

2. In Examples 1 and 2, the bottom surfaces of the storage chamber (insulation box body) and the machine room were formed by a single bottom plate member, but the bottom surfaces of the storage chamber (insulation box body) and the machine room may be formed separately.

3. In Examples 1 and 2, the bottom plate member was molded integrally with resin, but a plurality of panel members can also be assembled.

4. In Example 1, although the rail part which guides a unit base is formed in the front of a machine room, a rail part may also be formed in the rear part side of a machine room, and you may guide the wall part before and behind a unit base.

5. In the first embodiment, the extension pole of the side frame is sandwiched between the unit base and the side panel while the coupling pole formed in the side frame is inserted into the through hole formed in the unit base. Extension pieces may be configured to be individually screwed into the unit frame. The side frame may also be fixed to the bottom plate member.

6. In the first and second embodiments, the cooler is configured to be fixedly installed in the heat insulating box, but an opening is formed in the heat insulation partition wall that divides the storage compartment and the machine compartment so that the cooler is also pulled out integrally when the unit base is taken out. Also good. In this case, in the heat insulation box body, the cooling chamber which accommodates a cooler is comprised independently from a storage chamber, and the opening part of a heat insulation partition wall is sealed so that the unit base may be accommodated in a machine room, and a cooling chamber and It is desirable to isolate the machine room.

7. In Examples 1 and 2, the cold storage showcase configured to install the machine room on the left side of the storage compartment (insulation box) and pull out the unit base to the left is illustrated, but the machine room on the right side of the storage compartment (heat insulation box). Of course, it is also possible to configure the unit base to be drawn out to the right side.

8. In Example 2, although the rear cover which comprises the back of a machine room is comprised by the exterior panel which comprises a frame unit, and a louver, you may comprise so that a rear cover may be comprised only by a louver, and a rear cover by other structure It may be formed.

9. In Example 2, although the rail part which guides a unit base is comprised so that it may be provided in the heat insulation partition wall side which divides a storage room and a machine room, a rail part may also be formed in the fixing plate side, and the left and right wall parts of a unit base may be guided.

Claims (6)

The machine room 13 in which the cooling mechanism 80 which circulates and supplies a refrigerant | coolant to the said cooler is provided in the side of the heat insulation box 16 which comprises the storage chamber 12 and is equipped with the cooler which cools the said storage chamber 12. In a refrigerated showcase configured to cover the front sides of the storage compartment 12 and the machine compartment 13 by a single front glass 14,
The side surface of the machine room 13 is constituted by a detachable side panel 65 so that the machine room 13 opens laterally in a state where the side panel 65 is removed, and the cooling mechanism 80 is opened. The unit base 38 can be withdrawn from the machine room 13 through the side opening of the machine room 13, which is placed on the drawable unit base 38 from the machine room 13 and the side panel 65 is removed. Refrigerated showcase, characterized in that configured to.
The method of claim 1,
The unit is installed in the machine room 13 while a guide means 36 for guiding the front of the unit base 38 is received, and the unit base 38 is accommodated in the machine room 13. A refrigerated showcase, characterized in that the rear side of the base 38 is fixed with screws.
The method according to claim 1 or 2,
The bottom plate member 25 constituting the bottom surface of the machine room 13 is opened upward and is integrally formed by resin in a U-shaped cross section, and opposing surface portions 26 and 27 of the bottom plate member 25 are opposed to each other. Refrigerating showcase, characterized in that configured to guide the unit base (38) along.
The machine room 13 in which the cooling mechanism 80 which circulates and supplies a refrigerant | coolant to the said cooler is provided in the side of the heat insulation box 16 which comprises the storage chamber 12 and is equipped with the cooler which cools the said storage chamber 12. In the cold storage showcase configured to cover the front side of the storage chamber 12 and the machine room 13 by a single front glass 14,
The rear surface of the machine room 13 is constituted by a detachable rear cover 57, 61 so that the machine room 13 opens rearward in a state where the rear cover 57, 61 is removed. The unit base 108 is placed in the machine room 13 through the rear opening of the machine room 13, which is placed on the unit base 108 which can be pulled out from the machine room 13 and the rear covers 57 and 61 are removed. A refrigerated showcase, characterized in that the drawer is configured to be withdrawn from (13).
The method of claim 4, wherein
The guide means 106 is provided in the machine room 13, and the unit base 108 is configured to guide the wall part 110 facing the wall part 109 screwed to the side panel 65. Refrigerated showcase.
The method according to claim 4 or 5,
Fixing plate 102 provided between the side panel 65 and the unit base 108 constituting the side of the machine room 13 so as to be continuous to the bottom plate member 25 constituting the bottom surface of the machine room 13. Refrigerating showcase, characterized in that configured to fix the side panel 65 and the unit base 108 with a screw inserted.

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